Improvement in shingle-machine



@nicht @hijita WILLIAM H. PALMER, OF ROGKVILLE'RHDE ISLAND.

Letters Patent No. 99,940, dated February 15, 1870.

IMPROVEMENT IN SHINGLEMACHINE.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Figure 3 is a detail plan view of the supportiug-y frame. I l Figure 4 is a vertical central section of the same. Similar letters of referenceindicate corresponding parts.

rlhis invention relates to certain improvements'iri that class of shingle-machines in which the blocks to be out are held in a rotary frame and exposed to the action of horizontal circular saws.

The invention consists in various details ot' construction, whereby the`blocks are brought into the'I proper alternate Vinclined positions and caused to be firmly clamped while being sawed.

Thev invention also consists in the arrangement, with a shingle-machine, of the aforesaid kind of an apparatus for trimming the edges of the shingles cut by the same. j

A, in the drawing, represents the frame ofthe machine. It is made inform of an annular plate and supported by suitable posts B.

C is the circular frame which carries the shingles. It is mounted on a vertical shaft, l), which has its bearings in the center of the frame A.

Cog-wheels a a are formed on the 'frame C, so that the same may receive rotary motion from a piuion, b, on a driving shaft, E.

The ii'ame C may also. be rotated by applying the motive power to the shaft I).

F F are two circular saws mounted on vertical shafts G, and held under the frame O, as shown. Y

The frame C is divided by means of radial arms and other bars, d, into six (more or less) parts, each part being a receptacle for a block to be sawed.

The blocks are .held iu the compartments by jaws Gr and H.

The outer jaws H are formed on levers I that are Apulled inwardly by springs e.

' The said levers I extend inward toward the center of the frame C, and are, by rods f and g, connected with the innerjaws G, 'so that thus the two jaws are connected to move simultaneously toward or away from each other. j

v0n theouter end of each lever I is formed a project-ing pin, h, which, before a block is brought to a saw, is caused to Apass along. the outer face of a fixed cam, t', projecting from the frame A. The lever is thereby drawn out, and the jaws are moved apart to release the block and drop itA upon the adjusting platform J.

'One such adjusting platform'is arranged in front of each saw.

The platform is pivoted to the shaft D so that it can turn ou the same, and is inclined in such suitable direction as may be necessary to properly place the block.

As the frame C docs not cease to move after a block has been deposited on theplatform, it is necessary that the latter moves along'v with C while the block is ou it. v

For this purpose a lever, K, weighted at its lower end, is pivoted to the under side of each platform, and has a pin, j, projecting upward through the same.

rlhe. upper end of said pin is beveled.

When a bar, d, of the frame C strikes said pin j,

yit causes the platform to move along with it until the said pin has been forced down below the frame C, which is done iu proper time owing to its inclined upper end. p

The jaws release the block at the same instant at which the platform commences to move with the frame C, and the block therefore remains in its proper relative position to the frame O.

As soon as thepin h haspassed the cam t', the jaws are released again and clamp the block to hold it secure.

The block is thus dropped to have itslower face adjusted, is then reclamped, and carried to the saw.

The platform is, after it has been carriedalong by the trame C, carried back to its original position by 'a weight, l, ready to receive and adjust another block.

The platform, instead of having a fixed inclination, may be pivoted to a frame, L, (see g. 3,) and con-v nected with a lockbar O, by which it can be set in any direction.

While the block. is being cut the saws, the jaws l are firmly clamped together by a cam-lever, P, pivoted to the frame A and acted upon by a weight or spring, 1n,- so as to push the rod g outwardly, and

thereby move the jaws toward each other.

To the frame A are secured semi-cylindrical vertical cases, M, which contain rotary cutters N N, and which are slotted, as shown in fig. 3.

The cutters are revolved and serve to plain'o or shingle-cutter makes the whole apparatus more eieotive, as the 'shingles can be more rapidly completed than on the simple shingle-machines now in use.

Having thus described my invention,

I claim as new, and desire to secure by Letters Patent- 1. The arrangement of the spiral springs e with relation to the radial ribs d of the frame O, and the lever I, provided with the jaw H and the rods fg and jaw G, whereby the block is held, as shown and described.

2. The platform J, pvoted to the center of the revolving frame and provided with the Weighted lever K, that has the projecting pin j to carry the platform with the revolving frame, substantially as set forth.

3. The platform J, combined with a. frame, L, and lock-bar O, substantially as and for the purpose herein shown and described.

4. The cam-lever L, acting upon the jews G H so as to loelr the blocks securely while they nre being sawed, as set forth.

5. The arrangement, with relation to the rotary frame C and the saws, of the rotary trimmer N, provided wtli the case M, constructed :ind operating :is

specified.

WM. H. H. PALMER.

Witnesses:

GEO. W. MABEE, ALEX. F. ROBERTS. 

